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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
The space shuttle Discovery rolls out to the launch pad after two months of delays.
Click on image for full size
Courtesy of NASA

Discover Heads to Launch Pad Just in Time
News story originally written on November 15, 1999

Finally, after two months of delays, the space shuttle Discovery is on the launch pad. Wiring problems and other difficulties have set back the initial launch date to December 6th. Now that the shuttle is on the launch pad, NASA is in final preparations before the launch.

"We are in the business of launching shuttles," NASA spokesman Joel Wells said. "Although everyone at Kennedy knows that safety is first, it is good to see vehicles moving around, because that is the business that we are in."

The good news couldn't have come at a better time. The Hubble Space Telescope is now facing problems that would not have occurred if the shuttle had launched on time. The telescope has 6 gyros, which keep the spacecraft in position for measurements. Four of these gyros have malfunctioned, forcing the Hubble into safe mode. This means that it can no longer be used for observations until it is fixed.

"The telescope is in good shape, we're getting telemetry and everything else is showing good indications that the spacecraft is in good health," said Don Savage from NASA headquarters in Washington, D.C.

Although the telescope is not in any danger, scientists will lose 6 weeks of information. NASA believes that after astronauts fix the Hubble, it should be ready for use in January.

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